[info-performer] alpha transparency for lines

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From: Bram Stolk (bram++at++sara.nl)
Date: 04/24/2002 06:26:24

Hello,

I'm working with LINES pfGeoSets, that are non-indexed, and have
color per prim.

I am trying to animate the alpha of the RGBA of the lines,
but after careful examination I am inclined to conclude that
lines have a very low 'alpha-depth'.

Only a few discrete alpha levels can be detected my onyx and o2.
It looks like lines have 2 bit alpha?
Could this be?

I don't think it's a fault in my anim code, as animating
the RGB parts of RGBA does show a gradual continuous animation,
whereas animating A only does not. I'm puzzled.

Many thanks,

  Bram Stolk 

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 Bram Stolk, VR Specialist.
 SARA Academic Computing Services Amsterdam, PO Box 94613, 1090 GP  AMSTERDAM
 email: bram++at++sara.nl   Phone +31-20-5923059  Fax +31-20-6683167

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